Safran: The CFM LEAP Engine and the Razor-and-Blade Model

Safran sells engines almost at cost and then earns its fortune servicing them for decades. That razor-and-blade logic, executed through a uniquely durable partnership with an American rival, has made the French group one of the most profitable names in aerospace. This article explains how CFM works, why the aftermarket is the real business, and where the risks lie.

The scale is easy to underestimate. There are tens of thousands of Safran-built engines flying today, and every one of them represents a paying customer for spare parts and maintenance for the next quarter-century. That installed base, not any single year’s sales, is what makes the company one of the most quietly powerful businesses in French industry.

What does Safran actually do?

Safran is a diversified aerospace and defence supplier, but its centre of gravity is propulsion — the jet engines that power the world’s single-aisle fleet. Beyond engines it makes landing gear, wiring, nacelles, avionics, aircraft interiors and defence optronics, giving it content on almost every commercial aircraft flying.

This breadth means Safran wins whether an airline buys Airbus or Boeing, because its systems sit on both. But propulsion is the crown jewel, and within propulsion the CFM joint venture is the asset that defines the company’s economics and its extraordinary margins.

How did Safran come to exist?

Safran in its current form was created in 2005 by merging the aero-engine maker SNECMA with the security and electronics group Sagem, but its engine heritage runs back much further. SNECMA had already partnered with GE in 1974 to form CFM International, so the crown-jewel alliance predates the modern company by three decades.

The 2005 merger was contentious — an engine house and an electronics firm were an awkward fit — but over time Safran shed peripheral businesses and doubled down on propulsion and high-value aircraft systems. A later acquisition of Zodiac Aerospace added cabins and interiors. The result is today’s focused aerospace major, but the through-line is the CFM partnership that has anchored its identity since the 1970s. That kind of decades-long strategic continuity is a recurring theme across the France Company Stories hub.

How does the CFM International joint venture work?

CFM International is a 50/50 partnership between Safran and America’s GE Aerospace that has endured for half a century — an unusually stable arrangement in an industry full of broken alliances. Safran builds the low-pressure and cold sections; GE builds the high-pressure core; the two share revenue and profit equally.

The venture’s genius is that it let two national champions pool the enormous cost and risk of developing a jet engine while presenting airlines with a single product. Its CFM56 became the best-selling jet engine in history, and its successor, the LEAP, extended that dominance into the current generation. Because neither partner can walk away without destroying enormous shared value, the alliance is effectively self-enforcing.

The 50/50 split also solves a delicate political problem. A French champion and an American champion each retain equal standing, equal branding and equal profit, so neither government feels its national industry has been subordinated to the other. Few cross-border industrial marriages survive that test for fifty years; CFM has, and its longevity is itself a competitive moat because rivals cannot easily replicate half a century of shared tooling, data and trust.

Why is the LEAP engine so important?

The LEAP is important because it powers the two aircraft that dominate single-aisle aviation: it is the sole engine on the Boeing 737 MAX and one of two options on the Airbus A320neo family, where it holds the majority share. Safran delivered 1,407 LEAP engines in 2024.

Winning a place on these platforms is worth far more than the engine sale itself. Every LEAP that enters service starts a multi-decade relationship in which the airline must buy Safran spare parts and sign service agreements to keep flying. Through CFM, Safran and GE together command well over 70% of the narrow-body engine market, the single most valuable installed base in commercial aerospace.

Where does Safran really make its money?

Safran makes the bulk of its profit in the civil aftermarket — the spare parts and rate-per-flight-hour service contracts tied to its 36,000-plus installed engines. New-engine sales are near break-even by design; the money arrives over the following decades as those engines are maintained.

This is the razor-and-blade model in its purest industrial form. Aftermarket gross margins can exceed 70%, and because engines fly for 25 to 30 years, each unit sold today underwrites a long, predictable, high-margin income stream. In 2024 Safran’s civil aftermarket revenue grew sharply again, and it is this recurring annuity — not the delivery count — that explains the company’s cash generation and its premium valuation.

The mechanics reward patience. A rate-per-flight-hour contract means the airline pays Safran for every hour the engine flies, converting Safran’s revenue into something close to a toll on global air traffic. As passenger demand recovered after the pandemic and aircraft utilisation climbed, those flight hours — and Safran’s aftermarket billings — rose with them, largely independent of whether airlines were placing new orders that year.

Who controls and runs Safran?

Safran is a widely held public company listed on Euronext Paris and a member of the CAC 40, without a single controlling family of the kind that dominates French luxury. The French state retains a strategic minority stake, reflecting the group’s importance to national defence and sovereign industrial capability.

Operationally the group is run by professional management — chief executive Olivier Andriès, with Ross McInnes as chairman — and governed like a normal blue-chip rather than a founder’s estate. That distinguishes it from the family-controlled model seen across the France Company Stories hub, and it means capital allocation is driven by institutional shareholders and the disciplines of the public market.

How does Safran fit into the French defence base?

Beyond civil aviation, Safran is a pillar of French military capability. It builds the M88 engine that powers the Rafale fighter, supplies guidance systems, optronics and drones, and produces helicopter engines through Safran Helicopter Engines, a global leader in that niche.

This military work has grown more valuable as European governments raise defence budgets in a more dangerous security environment. Rafale export campaigns to India, the Gulf states and Indonesia each pull through Safran propulsion and years of support contracts, giving the group a second, government-funded annuity that behaves very differently from its civil business and helps offset commercial-aviation cycles.

This defence exposure has become more valuable as European governments raise military spending. It also ties Safran into the same national ecosystem as Dassault Aviation, whose Rafale it powers, and Thales, whose mission systems fly alongside its engines — a tightly interlinked cluster explored across the Aerospace, Defense & Naval pillar.

What are the main risks to Safran?

The most immediate risk is the supply chain. Safran repeatedly missed its own LEAP delivery targets because it could not source enough parts, and any prolonged production shortfall delays the very aftermarket annuity that drives its profits.

Other risks include dependence on Airbus and Boeing build rates, since Safran cannot ship engines faster than airframers take them; exposure to a single dominant product family; and the long-term challenge of decarbonising flight, which will eventually require a clean-sheet engine architecture. The half-century CFM alliance with GE is also a dependency — an enormous asset, but one Safran does not fully control.

Finally, Safran carries currency risk. Engines and aftermarket services are largely priced in dollars while much of its cost base is in euros, so a sustained shift in the exchange rate moves reported margins even when the underlying business is unchanged. The group hedges actively, but the exposure is structural for a French exporter selling into a dollar-denominated industry.

Who competes with Safran and CFM?

The main challenger on the A320neo is Pratt & Whitney’s geared turbofan, the only alternative to the LEAP on that aircraft. Rolls-Royce, meanwhile, has retreated to wide-body engines and does not currently compete in the single-aisle segment, leaving the high-volume narrow-body market as effectively a two-horse race.

That structure is unusually favourable for Safran. Developing a certified jet engine costs billions and takes many years, so the barriers to entry are almost insurmountable, and no new entrant has broken into large commercial propulsion in decades. Even Pratt’s geared turbofan, technically impressive, suffered costly durability problems that pushed some airlines toward the LEAP. In a market this hard to enter, an incumbent with 36,000 engines already flying enjoys a moat that widens with every delivery — the compounding advantage the France Company Stories hub keeps returning to.

What can founders learn from Safran?

Safran is the definitive lesson in designing a business around recurring revenue rather than the headline transaction. By treating the engine sale as a customer-acquisition cost and the decades of service as the real product, it turned a capital-intensive, cyclical industry into a stream of predictable high-margin cash.

It also shows the strategic power of a well-structured partnership: the CFM venture let Safran share risk with a rival and lock in a position no solo competitor could dislodge. For anyone studying the France Company Stories hub, Safran proves that the most valuable question is not ‘what do we sell?’ but ‘what do we still own after the sale is done?’

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